I dropped the Revloc autoclutch (dynaring) (out of '05 CRF450R, made for the '02-'11 models) into my '07 EC300 this week. It works. Beautifully. And Yes, the clutch lever still works normally. You have to create the gap so that it is just right, which isn't hard to do, but takes some tinkering with different thickness washers. Too thin/narrow of a gap and the bike will pull too hard at idle. So start narrow and progressively make it thicker/wider (the gap) and get the bike to have just a tiny pull at idle, and drive with just slight throttle. This will make clutch engagement prompt and maximize life. But make the gap too big and the autoclutch won't engage the clutch pack/pressure plate, and you will have to rev up high to get the autoclutch to engage (this would worsen slipping, wear, and heat generation). Once you understand this simple principle of the autoclutch, creating the perfect gap is not something nebulous, but the response you want from your clutch.
If you do this mod with a drop in autoclutch, make the gap adjustment (with washers) on the OUTBOARD side of the throwout bearing (the THIRD way to adjust gap that I mention in the first video). It is just much easier.
Also I just put new clutch springs in (stock from Gofasters). The old ones were sacked out. If you do this mod, you want firm clutch springs.
Installation video:
http://www.youtube.com/watch?v=LsqKrh8fmZk
Testing video:
http://youtu.be/VXHHjnhIU3U
Comments from anyone else that has done this install? Or that hasn't done this mod for that matter?